* possible descendants.
*
* return:
+ * the number of matched strings in strvec on success
* EC_PARSE_NOMATCH (positive) if it does not match
- * any other negative value (-errno) for other errors
- * the number of matched strings in strvec
+ * -1 on error, and errno is set
*/
int ec_node_parse_child(const struct ec_node *node,
struct ec_parse *state,